Portable mask holder



A portion of the disclosure of this design patent document contains material that is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.

FIG. 1 is a perspective view there of a new design of a portable mask holder;

FIG. 2 is a side-view thereof;

FIG. 3 is a top-side view thereof; and,

FIG. 4 is a bottom view thereof. 

CLAIM I claim, the ornamental design for a portable mask holder, as shown and described. 